In vitro growth culture of bovine follicles for developing model of dominant follicle and for application to in vitro production of wildlife oocytes
Project/Area Number |
25450441
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Veterinary medical science
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Research Institution | Hokkaido University |
Principal Investigator |
Nagano Masashi 北海道大学, (連合)獣医学研究科, 准教授 (70312402)
|
Research Collaborator |
HUANG Weiping
KANG Sung-Sik
KOYAMA Keisuke
NAGAI Katsuhisa
SAKAGUCHI Kenichiro
YANG Yinghua
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
Keywords | 牛 / 卵子 / 体外発育 / 体外受精 / 卵胞 / 体外発育培養 / 野生動物 / 精子 / IVG / IVM / 初期胞状卵胞 / 受精卵移植 |
Outline of Final Research Achievements |
I tried to improve the culture system of oocyte-granulosa complexes (OGCs) derived from bovine early antral follicles. As the results, I produced offspring effectively by my developed system, and it was the third case in the world. The result indicates the embryos derived from the culture system have normality the same as in vivo derived embryos. When I added born morphogenetic protein-4 (BMP-4) to culture medium, the mean diameter of granulosa cells became smaller and progesterone secretion from granulosa cells was inhibited. These mean that BMP-4 inhibits the luteinization of granulosa cells. In addition, I compared the developmental competence of OGCs derived from ovaries having different antral follicle count (AFC). OGCs derived from high and low AFCs showed similar viability during growth culture; however, the mean number of granulosa cells was higher in high AFC group. Oocytes derived from high AFC have higher activity of mitochondria and showed higher nuclear maturation rate.
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Report
(4 results)
Research Products
(23 results)
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[Journal Article] Mitochondrial activity during pre-maturational culture in in vitro-grown bovine oocytes related to maturational and developmental competences2016
Author(s)
Huang, W., Kang, S.S., Nagai, K., Yanagawa, Y., Takahashi, Y. and Nagano, M.
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Journal Title
Reproduction, Fertility and Development
Volume: 28
Issue: 3
Pages: 349-356
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Simultaneous evaluation of plasma membrane integrity, acrosomal integrity, and mitochondrial membrane potential in bovine spermatozoa by flowcytometry2016
Author(s)
Kanno, C., Kang, S.S., Kitade, Y., Yanagawa, Y., Takahashi, Y. and Nagano, M.
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Journal Title
Zygote
Volume: 未定
Issue: 4
Pages: 529-536
DOI
NAID
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Addition of D-penicillamine, hypotaurine, and epinephrine (PHE) mixture to IVF medium maintains motility and longevity of bovine sperm and enhances stable production of blastocysts <i>in vitro</i>2015
Author(s)
Kang, S.S., Koyama, K., Huang, W., Yanagawa, Y., Takahashi, Y. and Nagano, M.
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Journal Title
Journal of Reproduction and Development
Volume: 61
Issue: 2
Pages: 99-105
DOI
NAID
ISSN
0916-8818, 1348-4400
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Effects of in vitro-growth culture duration on fertilizability of bovine growing oocytes and proliferation of cells surrounding oocytes2014
Author(s)
Huang, W., Kang, S.S., Yanagawa, Y., Yang, Y., Takahashi, Y. and Nagano, M.
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Journal Title
Japanese Journal of Veterinary Research
Volume: 62
Issue: 3
Pages: 135-141
DOI
NAID
ISSN
0047-1917
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Aging-related Changes in <i>In Vitro</i>-matured Bovine Oocytes: Oxidative Stress, Mitochondrial Activity and ATP Content After Nuclear Maturation2014
Author(s)
Koyama, K., Kang, S.S., Huang, W., Yanagawa, Y., Takahashi, Y. and Nagano, M.
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Journal Title
Journal of Reproduction and Development
Volume: 60
Issue: 2
Pages: 136-142
DOI
NAID
ISSN
0916-8818, 1348-4400
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Estimation of the Optimal Timing of Fertilization for Embryo Development of <i>In Vitro</i>-Matured Bovine Oocytes Based on the Times of Nuclear Maturation and Sperm Penetration2014
Author(s)
Koyama, K., Kang, S.S., Huang, W., Yanagawa, Y., Takahashi, Y. and Nagano, M.
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Journal Title
Journal of Veterinary Medical Science
Volume: 76
Issue: 5
Pages: 653-659
DOI
NAID
ISSN
0916-7250, 1347-7439
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] In vitro maturation system for individual culture of bovine oocytes using micro-volume multi-well plate2013
Author(s)
Nagano, M., Kang, S.S., Koyama, K., Huang, W., Yanagawa, Y. and Takahashi, Y.
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Journal Title
Japanese Journal of Veterinary Research
Volume: 61
Pages: 149-154
NAID
Related Report
Peer Reviewed
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